求直线x_y_1=0与圆x平方 y平方=13

shouldn't be&couldn't have been的提问— There were already five people in the car but they managed to take me as well.— It _______ a comfortable journey.A.can't beB.sholdn't beC.must have beenD.couldn't have been请问B错在哪里? 至于夏水襄陵的于是什么意思? If you want to visit it,you'd better bring a good map ____ you A.to B.with C.at as lost as … as有什么用法么? lost as a cancer grows的意思lost as a cancer grows是什么意思?除了字面的翻译还有没有引申意? 请问but I lost as a person的意思是什么 couldn't和shouldn't的区别,急要 as as has been stated中文意思 as stated in the back 原句是：As stated in the back,this hotel voucher only covers single room charges. 从今若许闲乘月的乘是什么意思 从今若许闲乘月,拄杖无时夜叩门中无时的意思 请大家为我解释下以下这句话的意思,感激不尽!我寄了一张名信片给芬兰的好友,她收到后邮箱复了我这样一句话：Reindeer wrote you a message:"thanks for nice card!H-M" 男 1982 6 9 14:30生,求预测和调整方法! 感激不尽甲乙两人从湖边某一地点同时反向而行,甲以4千米/小时的速度每走1小时休息5分钟,乙以6千米/小时每走50分钟休息10分钟.已知绕湖一周是22千米,则甲乙二人出发到第一次相遇需要多少 borrow是什么意思 诡计 反义词是 急用 英语翻译保护海洋,保护海豚!海豚是国家一级保护动物.海豚不但喜欢接近人们,他们还保护溺水的人们不受到鲨鱼的袭击.海豚搭救海上遇险的人,已经不是新奇的事了.曾经有四名因船只翻沉而 请你帮忙把电话内容补充完整. 不惧风暴 INTO THE STORM怎么样 One day you'll come to me and ask me what's more important:You or my life.I'll say my life and you'll walk away never knowing that you're my life出自哪里,作者是谁,以及原文, borrow up 具体的内容,请看问题补充.31.（10分）将一定量CO和H2的混合气体通过盛有足量灼热CuO的硬质玻璃管后,再通过装有碱石灰（吸收CO2和H2O）的干燥管,假设反应和吸收均完全.现有下列实验数据： reasonable是什么意思啊?如何背? reasonable是什么 reasonable 求英作,具体内容看问题补充I couldn't come to school today.What did you do in the English class?What homework do we have?When do we have to give it to the teach? 用婆娑斑驳写句子 相遇问题,会做的帮一下.具体内容在问题补充里有甲、乙两人从A、B两地同时出发,甲骑自行车,乙骑摩托车,沿同一路线匀速相向行驶.已知他们的速度比为2:5,在离中点10.5千米处相遇,相遇后乙 I think as a man should be more generous point.请问这语法对吗? Strangle是什么意思 外汇英语：“Straddle”和“Strangle”的外汇含义是什么?